Html NumberInput
Set the allowNull property of the jqxNumberInput.
Author: http://jqwidgets.com
by Hristo Hristov
HTML
<script src="http:\\jqwidgets.com\jquery-widgets-demo\jqwidgets\globalization/globalize.js"></script>
<link rel="stylesheet" href="http://jqwidgets.com/public/jqwidgets/styles/jqx.base.css">
<link rel="stylesheet" href="http://jqwidgets.com/public/jqwidgets/styles/jqx.energyblue.css">
<script src="http://jqwidgets.com/public/jqwidgets/jqx-all.js"></script>
<div style="margin: 10px;" id='jqxNumberInput'></div>
JavaScript
$("#jqxNumberInput").jqxNumberInput({
width: 250,
height: 25,
inputMode: "simple",
allowNull: true,
value: 0,
placeHolder: "Null Value"
});
$("#jqxNumberInput").jqxNumberInput("val", null);